FIELD: physical chemistry. SUBSTANCE: invention relates to the production of zinc powder from zinc-containing raw materials. The method involves the electrochemical reduction of zinc from a zinc-containing compound in an alkaline electrolyte. Zinc oxide is used as a zinc-containing compound, the electrochemical reduction is carried out by direct contact of the solid phase of zinc oxide with the cathode, while the cathode current density is 4000-5000 A/m2, and the alkali content in the electrolyte during the electrolysis is maintained in the range of 30-70 g/l. To increase the speed of the process, 5-10% of the zinc powder by weight of the zinc oxide is added to the zinc oxide before electrolysis. EFFECT: method makes it possible to increase the specific rate of zinc reduction and to obtain a fine powder. 1 cl, 1 dwg.
Translated title of the contributionMethod for Producing Zinc Powder: patent of invention
Original languageRussian
Patent number2757151
IPCB03B 7/00,C22B 19/00,C25C 1/16
Priority date27/02/2020
Filing date27/02/2020
Publication statusPublished - 11 Oct 2021

ID: 29451700